In living things, which of these is most important for regulating the rate of chemical reactions?

Question

Quizplus · Accepted Answer

Enzymes are the biological catalysts that regulate the rate of chemical reactions in living things. Enzymes work by lowering the activation energy needed for a reaction to occur, thereby increasing the rate of reaction. The concentration and activity of enzymes can be regulated through various mechanisms, including feedback inhibition and gene expression, allowing cells to tightly control their metabolic pathways. Changing the concentration of reactants or temperature can also affect the rate of reaction, but these factors do not have the same specificity and control as enzyme regulation. The nature of reacting substances may affect the rate of reaction, but this is not a general rule and varies depending on the specific biochemical reaction.

In Living Things, Which of These Is Most Important for Regulating